How To Bypass The Low Oil Sensor Of A Generator? The Ultimate Guide

A low oil sensor is used to shut down generators when the engine oil becomes dangerously low.

This prevents damage to the engine and saves money on expensive repairs in case something goes wrong.

Secondly, it helps to reduce pollution by keeping the engine from starting when there isn’t enough lubricant to keep things moving smoothly.

But in some cases, it does more harm than good.

Most often than not, the culprit behind your generator starting problem is the low-oil sensor. The faulty sensor shuts down the generator even when you have recently refueled it, and you would have to bypass the sensor to start the generator.

However, keep in mind that under no circumstances than the one mentioned you bypass the low-oil sensor. You would end up damaging Generator’s engine, and it’s critical part by repeatedly running it on low fuel.

There is a one-time exception for emergency situations.

As we promised, here we would discuss how to bypass the oil sensor in the easiest steps. But before you do that, let’s first have a look at the prerequisites.

Don’t Bypass Until Necessary:

You should never bypass the low-oil sensor just for the reason that you want it to run continuously without interruption.

Do make sure that the generator is placed on an even surface. Sometimes, the sensor is perfectly fine but is taking the reading incorrectly.

Call the manufacturers to know whether bypassing the oil sensor would void the warranty of the product or not. If the manufacturer is willing to get the product repaired for you under warranty or for cheap, you should prefer it.

You should also go through the user manual to find instructions. It is a gold mine of data on the generator operation, its parts and how to disassemble it.

However, if you are in a hurry and can’t wait any further, read this guide to bypass the low oil sensor on the generator step by step.

Make sure you follow all the safety precautions we discussed below.

Safety Precautions:

It may seem harmless but opening a generator without the proper safety precautions can lead to serious injury. 

-Keep children and pets away from the area where you are going to open up the generator. It has delicate parts, take care not to lose them as they are hard to replace.

-Wear gloves when handling metal parts and be careful not to touch any electrical components.

-If it has been running for some time, turn off the generator and allow it to cool for at least 10-15 minutes. Otherwise, you might risk getting burned.

-Remember that the fuel inside is highly flammable. While disassembling the generator, you would be very close to the fuel tank.

make sure that no cigarette, electrical sparks, and open flames are near the generator. near the fuel tank.

Bypassing A Low-oil Sensor On Generator: Step By Step Guide

Disconnecting the low-oil sensor is a pretty easy job if you know the basics. Although we still advise you against doing it without any purpose, we understand that there are situations in which it becomes absolutely necessary.

  • Each generator company has a different oil sensor location and also their operation varies. On Briggs, there is no indicator light, whereas there is one in Honda. Find out the exact location in the user manual.
  • Take all safety precautions before you operate on the generator.
  • On Briggs generators, and on many of the old ones, you would just have to unscrew a nut to disconnect the sensor wire, or in extreme conditions, you can just cut the wire. The case is the same with the old honda generators.
  • More advanced generators have an indicator light to help you keep close tabs on the oil level. The low-oil sensor wire is pretty hard to find in such types, but the user manual would be your guide. In these generators, you won’t have the option to disconnect the oil-sensor wire without cutting it.
  • Sometimes the sensor is stuck at the bottom of the tank directly touching the surface rather than the oil. In this scenario, you should just disconnect the sensor by cutting the wire, and then run the generator for some time. The oil of the fuel will change, and the sensor will get back to its original position.

Finding the wire that connects the sensor to the switch is the tricky part, and so we recommend reading the user manual or calling the manufacturer for it.

A faulty low-oil sensor is hard to replace but is absolutely necessary unless you don’t care about the life span of your generator.

The first place to look for the replacement is the store, both physical and online, which sold you the generator. They would have the replacement equipment for sure.

But if you don’t find one, be extra vigilant. refuel the oil every 12 to 14 hours if running the generator is absolutely necessary.

It is against the law in some places to use the generator without a low oil sensor as the rate of harmful emissions is high when the generator is low on oil. Be mindful of that.

Final Words:

If your generator refuses to start even if its tank is full, there can be a host of reasons for it.

However, the most common reason is a faulty low-oil sensor that shuts down the generator to save machinery from damage and harm. If you bypass this sensor, your machine will run without any issues.

We recommend you not to disconnect the low-oil sensor unless you have an emergent need to do so. Otherwise, you would end up damaging the generator irreparably.

Also make sure that the generator is sitting on an even surface, and not at an angle. Failing to do so will lead to the sensor taking an inaccurate reading of oil, and the problem isn’t with the generator itself.

We hope this guide helped you to bypass the low-oil sensor on the generator. Nevertheless, we would recommend you hiring a professional and consulting the manufacturer if you have enough time at your disposal.

We recommend that you should do regular maintenance checks on your generator. Here are a few generator maintenance tips you must look into.

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